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butyric acid Syllabification: bu·tyr·ic ac·id
Pronunciation: /byo͞oˌtirik ˈasid/

Definition of butyric acid in English:


A colorless, syrupy liquid organic acid found in rancid butter and in arnica oil.
  • Alternative name: butanoic acid; chemical formula: C3H7COOH
Example sentences
  • He named these materials and some of these names, like stearic acid and butyric acid, are still used today.
  • The name comes from butyric acid, an acid that has the smell of rancid butter.
  • A variety of other organic acids are produced by other bacteria, including butyric acid, responsible for the taste of rancid butter.


Pronunciation: /ˈbyo͞odəˌrāt/
Example sentences
  • Because butyrate is a primary energy source for colonic epithelial cells, it may protect the intestinal mucosa from disease.
  • It is well documented that butyrate is essential for proper colon health as it is the preferred substrate for energy generation by colonic epithelial cells.
  • Cells were incubated overnight with 10 mM sodium butyrate before experiments.


Mid 19th century: butyric from Latin butyrum (see butter) + -ic.

Definition of butyric acid in:
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